Unlike popular belief, the Web 2.0 is not a money-printing
machine. It's a long road until you can actually generate real
money with user content. Therefore, some shadey sites are probably
selling contact details to advertisers to make ends meet while
hoping for the big cashflow.

I don't have any data to back this up, and I want to change
that:

Please tell all your Web 2.0 sites to send me an
invitation! Please use an address in the
signmeup.madduck.net domain for that, and make sure to
include the domain name of the service to which you sign me up
before the @ symbol. Also append a hyphen/dash and a
random, short string. More on that in just a sec.

For instance, if you are one of those people that believes that
letting people know where you are (and have been) at any point in
time, tell Foursquare to
send an invitation to:

foursquare.com-ponies@signmeup.madduck.net

The reason for the random, short string ("ponies") is simply so
that I can later cross-check that a message receiving spam actually
went through a social networking site — I intend to catalog the
invitation messages.

Thank you for your time. Keep in mind: the more, the merrier.
I'll make sure to report back on the outcome of this little
experiment right here, so watch this space.